| 摘要 |
A steam temperature control system for a double reheating, forced circulation steam-generating unit is provided. The heat recover area of said unit is divided into two gas passages, a high-pressure reheater being disposed in one of the passages while a low-pressure reheater, in the other passage. A surface-type heat exchanger of the shell and the tube type is interposed in said low-pressure reheater so that the heat is transferred from the superheated steam bypassed from the main steam passage of said unit to the steam in said low-pressure reheater. By varying the temperature difference between said two steams, the quantity of heat to be transferred may be adjusted, thereby controlling the temperature of the steam in said low pressure reheater.
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